Hello,
One thing to remember is that many times the oxygen sensor codes can be due to faulty wiring for the sensors or other components.
Running rich or lean can be created by any number of components.
Could be due to faulty oxygen sensor, defective ECU, mass air flow sensor, open injectors etc.
Can you tell me the code that you are getting?
This can help identify the issue.
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
Please let me know if you have any questions.
Thank you.
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Thursday, January 27th, 2022 AT 10:25 PM